Example Code for Arduino-Continuous Data Reading in I2C Mode

Hardware Preparation

• SEN0663 Fermion: BMV080 PM2.5 Sensor × 1
• DFR0654 FireBeetle 2 ESP32-E Development Board × 1
• Several Dupont Wires

Software Preparation

• Download and install Arduino IDE: Download Link
• Download DFRobot_BMV080 library: DFRobot_BMV080 Library
• Library Installation Guide: View Installation Tutorial

Wiring Diagram

Connect the BMV080 sensor to the ESP32-E as illustrated, with the key wiring correspondences outlined below:

• Sensor Pin "3V3" → ESP32-E 3.3V
• Sensor Pin "GND" → ESP32-E GND
• Sensor I2C Pin "SCL" → ESP32-E SCL (default GPIO22)
• Sensor I2C Pin "SDA" → ESP32-E SDA (default GPIO21)

Other Preparation Work

• On the sensor’s "I2C/SPI Switching Pads", solder one 0Ω resistor to the I2C side (default mode; no modification to the factory configuration is required).
• Solder one 0Ω resistor each to the pads beneath the "H" silkscreen corresponding to the CSB and MISO pins (the I2C address will be 0x57 in this configuration).

Sample Code

#include "DFRobot_BMV080.h"

// Set the stack size of the loop task to 60KB
SET_LOOP_TASK_STACK_SIZE(60 * 1024);

// I2C address selection table:
/*
 * --------------------------------------
 * |    CSB Pin    |    MISO Pin    |  Address  |
 * --------------------------------------
 * |     0         |     0          | 0x54      |
 * --------------------------------------
 * |     0         |     1          | 0x55      |
 * --------------------------------------
 * |     1         |     0          | 0x56      |
 * --------------------------------------
 * |     1         |     1          | 0x57      |
 * --------------------------------------
 */
// Create an I2C sensor instance with address 0x57 (can be modified according to actual wiring)
DFRobot_BMV080_I2C sensor(&Wire, 0x57);

float pm1, pm2_5, pm10;

void setup() {
  char id[13];  // Used to store the chip ID of the BMV080 sensor
  Serial.begin(115200);
  while (!Serial) 
  delay(100);  // Wait for the serial port to be ready

  Serial.println("Continuous reading mode started");
  while (sensor.begin() != 0) {
    Serial.println("Sensor initialization failed! Please check if the sensor connection is correct");
    delay(1000);
  }
  Serial.println("Sensor initialization successful");

  while (sensor.openBmv080()) {
    Serial.println("Sensor opening failed");
    delay(1000);
  }
  Serial.println("Sensor opened successfully");

  // Get and print the chip ID
  sensor.getBmv080ID(id);
  Serial.println("Chip ID: " + String(id));

  // Enable obstruction detection (a prompt will be shown if obstructed, indicating data may be invalid)
  sensor.setObstructionDetection(true);

  // Set measurement mode to continuous mode
  if (0 == sensor.setBmv080Mode(CONTINUOUS_MODE)) {
    Serial.println("Measurement mode set successfully (continuous mode)");
  } else {
    Serial.println("Failed to set measurement mode");
  }
}

void loop() {
  if (sensor.getBmv080Data(&pm1, &pm2_5, &pm10)) {
    // Print PM1, PM2.5, PM10 values
    Serial.print("PM1: " + String(pm1) + " ug/m³  ");
    Serial.print("PM2.5: " + String(pm2_5) + " ug/m³  ");
    Serial.print("PM10: " + String(pm10) + " ug/m³");

    // Check if obstructed
    if (sensor.ifObstructed()) {
      Serial.print("  Note: Sensor is obstructed, data may be invalid");
    }
    Serial.println();
  }
  delay(100);  
}

Result